Home / 18,213.58-25,134.35-10,147.20

Finding the Fourth Proportional to 18,213.58, 25,134.35 and 10,147.20

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Solution

The fourth proportional to 18,213.58, 25,134.35 and 10,147.20 is: 14,002.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,213.58 : 25,134.35 = 10,147.20 : x
  2. Step 2: Convert to fraction form
    18,213.58/25,134.35 = 10,147.20/x
  3. Step 3: Cross multiply
    18,213.58x = 25,134.35 × 10,147.20
  4. Step 4: Simplify right side
    18,213.58x = 255,043,276.32
  5. Step 5: Solve for x
    x = 255,043,276.32/18,213.58
  6. Step 6: Final answer
    x = 14,002.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.